Home / 31,289.84-43,181.01-17,143.59

Finding the Fourth Proportional to 31,289.84, 43,181.01 and 17,143.59

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Solution

The fourth proportional to 31,289.84, 43,181.01 and 17,143.59 is: 23,658.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,289.84 : 43,181.01 = 17,143.59 : x
  2. Step 2: Convert to fraction form
    31,289.84/43,181.01 = 17,143.59/x
  3. Step 3: Cross multiply
    31,289.84x = 43,181.01 × 17,143.59
  4. Step 4: Simplify right side
    31,289.84x = 740,277,531.23
  5. Step 5: Solve for x
    x = 740,277,531.23/31,289.84
  6. Step 6: Final answer
    x = 23,658.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.